Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 541484
Title Phylogeography of the snake pipefish, Entelurus aequoreus (Family: Syngnathidae) in the northeastern Atlantic Ocean
Author(s) Braga Goncalves, Ines; Cornetti, Luca; Couperus, A.S.; Damme, Cindy J.G. Van; Mobley, Kenyon B.
Source Biological Journal of the Linnean Society 122 (2017)4. - ISSN 0024-4066 - p. 787 - 800.
DOI https://doi.org/10.1093/biolinnean/blx112
Department(s) IMARES Onderzoeksformatie
Publication type Refereed Article in a scientific journal
Publication year 2017
Abstract The snake pipefish, Entelurus aequoreus, is a widespread marine species occurring in pelagic and coastal environments in the northeastern Atlantic Ocean. Recently, the snake pipefish underwent a short-lived, yet substantial, increase in abundance and range expansion into arctic waters. However, little is known about the species' population structure or if different ecotypes contributed to this outbreak. Specimens (n = 178) were sampled from 25 locations from six regions spanning 1.9 million km2. A fragment of the mitochondrial cytochrome b gene and control region was used to assess population structure and genetic diversity. Both loci showed high haplotype diversity (Hd) and low nucleotide diversity (π) over all sampled locations. A genetic signature of population expansion was evident through mismatch distributions and tests for recent population expansion (Fu's Fs, Tajima's D and R2). Effective population size analyses (Bayesian skyline plot) suggest an expansion 50-100 thousand years before present. However, we found neither significant population differentiation (analysis of molecular variance) among regions nor evidence of genetically distinct ecotypes. This lack of structure is probably due to a pelagic life style, fast development and long distance dispersal aided by ocean currents. Our work highlights the need for further research to better understand the recent outbreak and how this species may respond to future environmental challenges
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